I thought you meant something more sensitive from him where Harley is necessary lol
Those things work well however.

Joker has conflicting issues inside too. They effect himself and evidently those around him. While he plays them out as a joke, he definitely has identity crisis. He deprives Harley, he makes sexual innuendos towards Batman, he occasionally cross dresses.

Silva was on those similar lines, being bi-sexual. But Joker is more severe with mental issues.

__________________“The world is a dangerous place not because of those who do evil, but because of those who look on and do nothing”Albert Einstein